Heterogeneous catalytic conversion of carbon dioxide and epoxides to cyclic carbonates

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 45, P. 103845 - 103845

Published: Jan. 3, 2024

Language: Английский

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Copper-Cluster-Based MOF as a Heterogeneous Catalyst for CO₂ Chemical Fixation and Azide–Alkyne Cycloaddition

Crystal Growth & Design, Journal Year: 2022, Volume and Issue: 22(11), P. 6531 - 6538

Published: Oct. 24, 2022

Developing metal–organic frameworks (MOFs) as heterogeneous catalysts attracts much attention because their high internal surface areas and open metal sites may facilely improve the catalytic activity. In this study, a copper-cluster-based MOF, denoted {2Cu(L)(A)·3H2O}n (1, L = bis(4-(4H-1,2,4-triazol-4-yl)phenyl)methane, A deprotonated 1,4-naphthalenedicarboxylic acid), has been constructed. 1 (3,10)-connected three-dimensional (3D) porous network structure with new topology of {48·624·83}{43}2. Structural analysis reveals that copper ions adopt two coordination modes in secondary building unit, forming polyhedral clusters by Cu–O–Cu bridge bonds. Detailed studies show can be employed an efficient catalyst for converting CO2 to cyclic carbonates 81.0–99.0% yield under atm solvent-free conditions. Furthermore, retains good efficiency after 10 cycles (83.0% conversion). Moreover, exhibits performance toward azide–alkyne cycloaddition (AAC) reactions aqueous solution addition sodium ascorbate, yielding series 1,4-disubstituted 1,2,3-triazoles yields (over 99.0%) presenting recyclable ability.

Language: Английский

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[HDBU]Br@P-DD as Porous Organic Polymer-Supported Ionic Liquid Catalysts for Chemical Fixation of CO₂ into Cyclic Carbonates

ACS Sustainable Chemistry & Engineering, Journal Year: 2023, Volume and Issue: 11(10), P. 4248 - 4257

Published: Feb. 24, 2023

The chemical fixation of CO2 into high value-added cyclic carbonates is significant potential and sustainability to address the energy ecological issues. [HDBU]Br@P-DD-m/n, a series porous organic polymer-supported ionic liquids (PSILs), were fabricated in this work through one-pot four-component reaction DMAEMA, DVB, 4-bromobutyric acid, DBU. formation [HDBU]Br construction P-DD polymer network proceeded concurrently with support situ-formed IL being achieved simultaneously. Characterization PSILs by IR, ICP, BET, SEM, TGA etc. showed that as-prepared catalysts possessed versatile hierarchical porosity varying densities excellent thermostability. copolymer skeleton was found be affected accompanying [HDBU]Br. then evaluated as for cycloaddition epoxides, among which [HDBU]Br@P-DD-4/1 optimal performance under atmospheric pressure solvent-/cocatalyst-free conditions (95% yield 99% selectivity epichlorohydrin). By correlating structures catalysts, synergistic effect tertiary amine, [HDBU]Br, pore distribution demonstrated. In addition, catalyst applicable synthesizing range differently substituted good yields. Finally, could recovered readily catalytic activity still observed after use 6 runs. not only provided an active, reusable, metal-free heterogeneous but also developed facile one-step multicomponent strategy constructing PSIL would promising find wide applications catalysis synthesis field.

Language: Английский

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Coordination Polymers as Heterogeneous Catalysts for Water Splitting and CO₂ Fixation

Crystal Growth & Design, Journal Year: 2022, Volume and Issue: 22(4), P. 2043 - 2045

Published: March 24, 2022

ADVERTISEMENT RETURN TO ISSUEEditorialNEXTCoordination Polymers as Heterogeneous Catalysts for Water Splitting and CO2 FixationKumar Biradha*Kumar Biradha*Email: [email protected]More by Kumar Biradhahttps://orcid.org/0000-0001-5464-1952, Samar K. DasSamar DasMore Dashttps://orcid.org/0000-0002-9536-6579, Xian-He BuXian-He BuMore Buhttps://orcid.org/0000-0002-2646-7974Cite this: Cryst. Growth Des. 2022, 22, 4, 2043–2045Publication Date (Web):March 24, 2022Publication History Published online24 March 2022Published inissue 6 April 2022https://pubs.acs.org/doi/10.1021/acs.cgd.2c00064https://doi.org/10.1021/acs.cgd.2c00064editorialACS PublicationsCopyright © 2022 American Chemical Society. This publication is available under these Terms of Use. Request reuse permissions free to access through this site. Learn MoreArticle Views2278Altmetric-Citations6LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum full text article downloads since November 2008 (both PDF HTML) across all institutions individuals. These metrics regularly updated reflect usage leading up last few days.Citations number other articles citing article, calculated Crossref daily. Find more information about citation counts.The Altmetric Attention Score a quantitative measure attention that research has received online. Clicking on donut icon will load page at altmetric.com with additional details score social media presence given article. how calculated. Share Add toView InAdd Full Text ReferenceAdd Description ExportRISCitationCitation abstractCitation referencesMore Options onFacebookTwitterWechatLinked InRedditEmail (562 KB) Get e-AlertscloseSUBJECTS:Evolution reactions,Heterogeneous catalysts,Materials,Metal organic frameworks,Water splitting e-Alerts

Language: Английский

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Recent Advances in Imidazolium-Based Dicationic Ionic Liquids as Organocatalysts: A Mini-Review

Materials, Journal Year: 2022, Volume and Issue: 15(3), P. 866 - 866

Published: Jan. 23, 2022

Imidazolium-based dicationic ionic liquids (DILs) are gaining considerable space in the field of organocatalysis mainly due to opportunities offering new possible applicable structural variations. In addition well-known variables which made (ILs) famous as type cation and anion used, nature molecular spacer moiety turns out a further possibility improve some physicochemical properties, for example, solubility, acidity, electrochemical behavior, so on. For this reason, class has been considered competitors their corresponding monocationic salts replacing common catalysts organic synthesis, particularly cases bidentate could positively affect catalytic activity. This mini-review is intended highlight progress carried last six years organocatalysis, including DILs such hybrids with polymers, nanomaterials, composites.

Language: Английский

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Alumina-Based Bifunctional Catalyst for Efficient CO₂ Fixation into Epoxides at Atmospheric Pressure

Inorganic Chemistry, Journal Year: 2022, Volume and Issue: 61(41), P. 16356 - 16369

Published: Oct. 4, 2022

The quest toward sustainability and decarbonization demands the development of methods for efficient carbon dioxide capture utilization. nonreductive CO2 fixation into epoxides to prepare cyclic carbonates has gained attention in recent years. In this work, we report guanidine hydrochloride-functionalized γ alumina (γ-Al2O3), prepared using green solvents, as an bifunctional catalyst fixation. resulting guanidine-grafted γ-Al2O3 (Al-Gh) proved be excellent from with high selectivity. nitrogen-rich Al-Gh shows increased adsorption capacity compared that γ-Al2O3. as-prepared was able carry out at 85 °C under atmospheric pressure absence solvents external additives (e.g., TBAI or KI). material showed negligible loss catalytic activity even after five cycles catalysis. successfully converted many their respective optimized conditions. gram-scale synthesis commercially important styrene oxide also achieved. Density functional theory (DFT) calculations revealed role activating epoxide. This activation facilitated chloride ion open ring react CO2. DFT studies validated stabilizing electron-rich intermediates during course reaction.

Language: Английский

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A Novel 2D Copper–Organic Framework for Catalyzing CO₂ Chemical Fixation and Luminescence Sensing

Crystal Growth & Design, Journal Year: 2023, Volume and Issue: 23(11), P. 7873 - 7881

Published: Oct. 19, 2023

Metal–organic frameworks (MOFs) show promising applications in catalysis and luminescent sensors due to their unique organic–inorganic porous structure. Herein, a novel copper MOF (Cu-MOF) is architected by the assembly of an imidazole carboxylic acid functionalized flexible ligand (HIM) with ions under hydrothermal conditions. The Lewis base built-in structure HIM facilitate architecting 2D 3-c network {43} topology during self-assembled coordination. Cu-MOF can be used catalyze reaction CO2 epoxides produce cyclic carbonates 12 examples substrate scope 70–98% yields mild catalyst shows recycling ability achieves conversion carbonate beyond 90% after 5 cycles. In addition, developed as turn-on Fe3+-selective sensor detection limit 0.53 μM. Moreover, selectively recognize MnO4– Cr2O72– emission quenching limits 0.57 0.23 μM, respectively. Besides, sensing regenerated reused times. Therefore, exhibits versatility offers sensors.

Language: Английский

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CO2 Fixation Reaction over Pyrimidinium-based Dicationic Ionic Liquid in MIL-101(Cr)

Applied Catalysis A General, Journal Year: 2025, Volume and Issue: unknown, P. 120186 - 120186

Published: Feb. 1, 2025

Language: Английский

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Catalytic conversion of carbon dioxide into cyclic carbonates and fuels over metal ionic liquid complexes: Experimental and DFT studies

Energy, Journal Year: 2025, Volume and Issue: unknown, P. 136488 - 136488

Published: May 1, 2025

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DBU-MIm coupled ionic liquids as reusable catalysts for the Biginelli reaction

Molecular Catalysis, Journal Year: 2023, Volume and Issue: 536, P. 112906 - 112906

Published: Jan. 5, 2023

Language: Английский

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